Finding the Fourth Proportional to 783,537.20, 1,081,265.88 and 456,911.12
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Solution
The fourth proportional to 783,537.20, 1,081,265.88 and 456,911.12 is: 630,528.33
Step by Step Solution
- Step 1: Write the proportion equation
783,537.20 : 1,081,265.88 = 456,911.12 : x - Step 2: Convert to fraction form
783,537.20/1,081,265.88 = 456,911.12/x - Step 3: Cross multiply
783,537.20x = 1,081,265.88 × 456,911.12 - Step 4: Simplify right side
783,537.20x = 494,042,404,248.59 - Step 5: Solve for x
x = 494,042,404,248.59/783,537.20 - Step 6: Final answer
x = 630,528.33
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.